Edward Teller (Hungarian: Teller Ede; January 15, 1908 – September 9, 2003) was a Hungarian-American theoretical physicist who is known colloquially as "the father of the hydrogen bomb" and one of the creators of the Teller–Ulam design. Teller was known for his scientific ability and his difficult interpersonal relations and volatile personality. Born in Hungary in 1908, Teller emigrated to the Un